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Top Cybersecurity Companies in Washington, DC

We've found the best
Cybersecurity Providers
 for you.

Looking for the best cybersecurity company in Washington? UpCity compiles authentic reviews, company descriptions, project examples, and more into a list for you to review. Feel confident you're finding the top provider for your business.

UpCity offers objective, independent research and verified user reviews. We earn compensation from some providers who sign up for sponsored profiles. Learn more about our trusted providers.

Location
Any/All Available
Provider's minimum per-project cost
Any/All Available
Up to $5,000
Up to $10,000
$25,000 or more
Provider's minimum retainer cost
Any/All Available
Up to $500, monthly
Up to $5,000, monthly
Industry Expertise
Any/All Available
Attorneys
Business Services
Construction
Dental
Education
Energy
Entertainment
Finance
Food/Beverage
Government
Healthcare
Hospitality
Industrial
Non-Profit
Restaurant
SaaS
Startups
Businesses provider works with
Any/All Available
Small Businesses: 1–250 employees
Medium Businesses: 251–999 employees
Enterprise Businesses: 1000+ employees
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8 Provider(s)Last Updated: October 28, 2025
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OSIbeyond

Washington, DC, US See Location
5.0 | 14 reviews
Last reviewed on 7/1/2024
World-class Managed IT & Cyber Security Services
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Businesses provider works with
Works with
Small, Medium, Enterprise
Provider's minimum per-project cost
Per-project minimum
$5,000 or more
Provider's minimum retainer cost
Retainer minimum
$2,000 or more, monthly
Provider updated information on 8/10/2021
Services Offered
Managed Service ProvidersIT ServicesCybersecurityCloud Consulting
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Verified Reviewer
OSI always responsive, professional and helpful to my requests for help and I like the online scheduling tool so that I can pick a follow-up time that is convenient for me.
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Proton Solutions

Washington, DC, US See Location
5.0 | 1 review
Last reviewed on 8/29/2023
Proton Solutions is a web, managed IT, and cybersecurity company serving the nation's capital and surrounding areas, including Maryland and Virginia, with over a decade of service. Founded on the ideals that the client is always right, customer service is our way of life and why we maintain an unwav
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Businesses provider works with
Works with
Small, Medium, Enterprise
Provider's minimum per-project cost
Per-project minimum
$2,500 or more
Provider updated information on 8/29/2023
Services Offered
Cybersecurity
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Liz Lathan — CEO
The whole team at Proton Solutions is very responsive and always answers our calls. We were used to having to leave a message and wait for a call back so this is a refreshing change for us. They also helped us with our cyber security needs so that we were able to get our cyber insurance.
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Critical IT Solutions, LLC

Washington, DC, US See Location
5.0 | 3 reviews
Last reviewed on 11/17/2022
Critical IT Solutions is your best choice for an MSP in Washington D.C., Maryland and Virginia. We provide comprehensive managed it services to small and mid sized businesses. We are a "One Call Does It All" IT support company. cyberescurity, CMMC compliance, IT helpdesk and more.
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Businesses provider works with
Works with
Small, Medium
Provider updated information on 8/28/2025
Services Offered
Managed Service ProvidersIT ServicesCybersecuritySystem Integration
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Who We Are
CEO
LinkedIn
André Holtkamp
Working with Mr Eshak has been informative and eye opening. Within a few weeks his professional, personalized and costs sensitive approach to our cyber security program and policies have resulted in a much-improved overall network security environment.
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Loginsoft

Washington, DC, US See Location
Loginsoft is a Cybersecurity services company providing comprehensive cybersecurity solutions tailored to meet the unique needs of organizations. Loginsoft is trusted by several leading security product and Enterprise companies as their best kept secret Technology partner.
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Businesses provider works with
Works with
Small, Medium, Enterprise
Provider's minimum per-project cost
Per-project minimum
$25,000 or more
Provider updated information on 3/24/2025
Services Offered
Cybersecurity
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Industry(s):
Healthcare | SaaS | Startups | Entertainment | Finance
Middleground is a technology consulting and services company dedicated to helping businesses get rid of technology frustrations. Our superior customer service, unmatched attention to detail, and technical consulting skills are the driver for business growth.
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Businesses provider works with
Works with
Small, Medium, Enterprise
Provider's minimum per-project cost
Per-project minimum
$5,000 or more
Provider's minimum retainer cost
Retainer minimum
$2,000 or more, monthly
Provider updated information on 7/1/2020
Services Offered
Managed Service ProvidersIT ServicesCybersecurity
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Industry(s):
Non-Profit | Healthcare | Finance | Construction | Attorneys | Business Services
2022 Study: 50% of SMBs Have a Cybersecurity Plan in Place | UpCity

This UpCity study presents insight from 600 U.S. small business owners and IT experts on their latest cybersecurity practices, data breach prevention, and disaster recovery measures in 2022.

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Stealth – ISS Group® Inc. acts as your extended IT, cybersecurity, risk and compliance team and provides strategic guidance, engineering and audit services, along with technical remediation and security operations.
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Businesses provider works with
Works with
Small, Medium, Enterprise
Provider's minimum per-project cost
Per-project minimum
$2,500 or more
Provider's minimum retainer cost
Retainer minimum
Less than $500, monthly
Provider updated information on 11/22/2021
Services Offered
Cybersecurity
Visit Profile
Industry(s):
Business Services

LetsNod

Washington, DC, US See Location
5.0 | 1 review
Last reviewed on 12/21/2022
LetsNod is a web, IT, and cybersecurity company that has been serving the nation's capital and surrounding areas for over a decade.
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Businesses provider works with
Works with
Small
Provider's minimum per-project cost
Per-project minimum
$2,500 or more
Provider updated information on 12/21/2022
Services Offered
Cybersecurity
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Verified Reviewer
This company is a dream to work with. They gave my team and I expert advice and filled some blanks that we did not even know existed. They have since become a one-stop shop for my company covering our IT, Web and secure all our infrastructure. Their team is ultra responsive and very flexible. I would definitely recommend LetsNod (and I have) to anyone looking for services they offer.
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Cybersecurity today is overpriced, overcomplicated, and opaque. At Iron Range Cyber we bring simplicity, clarity, and transparency to building cost-effective cybersecurity programs for small to mid-sized businesses.
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Services Offered
Cybersecurity
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